SEA

$204 Find Cheap Flights from Houston to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$303
Typical prices: $376-$576
Frontier
Fri 12/14Fri 12/21
IAH - SEA • 1 stop
Cheapest non-stop
$402
Typical prices: $398-$590
Alaska Airlines
Sat 12/15Sat 12/15
IAH - SEA • Non-stop
Advice from real travelers
Alaska Premium Class adds legroom; 20-minute baggage guarantee speeds bag claim.
United Economy Plus adds legroom, while Priority Boarding helps secure bin space.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with United Airlines and Alaska Airlines. Average duration is 4h 59m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $271 (round-trip)
Shortest trip • 6h 08m (one-way)
Insights
Insights
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Houston to Seattle

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Seattle

Thu, Dec 3 - Thu, Dec 10
Frontier Logo
10:03 pm - 8:02 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
23h 59m1 stop Los Angeles
Frontier Logo
1:36 pm - 11:19 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
31h 43m2 stops Los Angeles Las Vegas Harry Reid Intl
$303Frontier
Mon, Dec 14 - Mon, Dec 21
Frontier Logo
6:00 am - 3:43 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
11h 43m1 stop Denver Intl
Frontier Logo
6:25 pm - 5:46 amSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
9h 21m1 stop Las Vegas Harry Reid Intl
$303Frontier
Wed, Feb 3 - Sat, Feb 6
Multiple Airlines Logo
8:51 pm - 5:18 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
22h 27m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
10:44 am - 5:03 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 19mnonstop
$306Multiple Airlines
Wed, Jan 20 - Tue, Jan 26
Multiple Airlines Logo
8:51 pm - 11:36 amIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
16h 45m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
5:24 pm - 11:28 amSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
16h 04m1 stop Las Vegas Harry Reid Intl
$307Multiple Airlines
Tue, Dec 8 - Wed, Dec 9
Alaska Airlines Logo
6:10 pm - 2:56 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
22h 46m1 stop Portland
Alaska Airlines Logo
5:36 pm - 11:59 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 23mnonstop
$377Alaska Airlines
Tue, Dec 15 - Tue, Dec 15
Alaska Airlines Logo
6:00 am - 8:57 amIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
4h 57mnonstop
Alaska Airlines Logo
12:25 pm - 1:42 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
23h 17m1 stop Portland
$377Alaska Airlines
Tue, Dec 8 - Thu, Dec 10
Southwest Logo
12:20 pm - 5:50 pmHOU  Houston Hobby-SEA Seattle/Tacoma Intl
7h 30m1 stop Denver Intl
Southwest Logo
1:00 pm - 9:00 pmSEA  Seattle/Tacoma Intl-HOU Houston Hobby
6h 00m1 stop Phoenix Sky Harbor Intl
$392Southwest
Thu, Dec 3 - Thu, Dec 10
Southwest Logo
12:00 pm - 7:05 pmHOU  Houston Hobby-SEA Seattle/Tacoma Intl
9h 05m1 stop Phoenix Sky Harbor Intl
Southwest Logo
1:00 pm - 9:00 pmSEA  Seattle/Tacoma Intl-HOU Houston Hobby
6h 00m1 stop Phoenix Sky Harbor Intl
$392Southwest
Thu, Jan 21 - Mon, Jan 25
Delta Logo
6:00 am - 12:38 pmHOU  Houston Hobby-SEA Seattle/Tacoma Intl
8h 38m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:37 pmSEA  Seattle/Tacoma Intl-HOU Houston Hobby
8h 37m1 stop Atlanta Hartsfield-Jackson
$397Delta
Tue, Dec 8 - Sat, Dec 12
Delta Logo
5:27 pm - 11:55 pmHOU  Houston Hobby-SEA Seattle/Tacoma Intl
8h 28m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:35 pmSEA  Seattle/Tacoma Intl-HOU Houston Hobby
8h 35m1 stop Atlanta Hartsfield-Jackson
$397Delta
Booking Insights

Price, demand and travel trends for Houston to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Houston to Seattle?

Round-trip flights from Houston to Seattle typically range from $376 to $576. The lowest price found in the past 5 days was $303, on Frontier.

What's the cheapest day of the week to fly from Houston to Seattle?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Houston to Seattle. It’s 8% cheaper than the average day, while Monday is the most expensive, with prices 11% higher.

What’s the cheapest month to fly from Houston to Seattle?

•February is the cheapest month to fly from Houston to Seattle at $321 round-trip.
•November ($521) and June ($494) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 62% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Houston to Seattle the cheapest?

Flights from Houston to Seattle are cheapest 7 weeks before departure. Booking in this window typically costs about 44% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Houston to Seattle

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Key details for Houston to Seattle flights

Low season

December

Cheapest flight

$204
Beat the crowds with an average 42% drop in travelers.
The most popular month to fly with an average 76% increase in travelers.
One-way flight from Houston George Bush Intcntl Airport to Seattle

When to book flights from Houston to Seattle

Are your dates flexible? Find out the best times to travel from Houston to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Houston to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Houston to Seattle 
Verified travelerFlew with Alaska Airlines-Sep 2024
Tru and get a direct flight through United or Alaska so you have no transfers!!!
HaleyFlew with Alaska Airlines-Sep 2024
Check in early so you don’t have to sit in the last row.

Your Houston to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Houston to Seattle?

    These are the earliest and latest flight times available from Houston to Seattle:

    • Earliest: departs at 6:00 am and lands at 10:59 am
    • Latest: departs at 7:57 pm and lands at 12:56 am.

    The flight takes about 4h 59m.

  • What cabin classes can I book on flights from Houston to Seattle?

    Four cabin classes are available on flights from Houston to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Houston to Seattle?

    A nonstop flight from Houston to Seattle takes 4h 59m, covering 1,882 miles.

  • Do I need a passport to fly from Houston to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Houston to Seattle flight?

    Round-trip flights from Houston to Seattle range from $376 to $576, with an average of $461 over the past 12 months. Anything below $376 counts as a good deal.

  • How expensive are last-minute Houston to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 56% above the $461 route average. Book 7 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Houston to Seattle?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $271 round-trip via Los Angeles (LAX), compared to $484 for nonstop.

  • How does on-time performance compare across airlines flying from Houston to Seattle?

    Alaska Airlines is slightly above the route average for timely arrivals, while United Airlines has a lower on-time arrival rate. On-time arrival rates on Houston to Seattle flights are:

    • Alaska Airlines: 90% on time
    • United Airlines: 88% on time
    • Southwest: 80% on time

    Overall, flights on this route are punctual 88% of the time on average.

  • What is the standard checked-bag allowance on flights from Houston to Seattle?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • How are flight departures from Houston to Seattle spread across the day?

    Morning is the busiest departure period on Houston to Seattle flights, with 40% of flights leaving in that window. Afternoon departures account for 40%, evening flights for 20%, and night flights for 0%.

  • Have flight prices from Houston to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $303 to $2,281. That means the highest observed fare was about 8x higher than the lowest one.

  • Which airlines offer Wi-Fi on Houston to Seattle flights?

    Alaska Airlines is the only airline on the Houston to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Houston to Seattle looking right now?

    One-way fares from Houston to Seattle are currently lower than usual. Average one-way flight prices are about $209, which is 23% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Houston to Seattle?

    Flights from Houston to Seattle may depart from several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH). Flights usually arrive at Seattle/Tacoma Intl (SEA).

  • What time of day has the fewest delays on flights from Houston to Seattle?

    Morning flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight considered delayed from Houston to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Houston to Seattle route, 12% of flights were delayed in the past 3 months, with delays averaging 2h 23m.

  • Which airports do connecting flights from Houston to Seattle pass through?

    One-stop flights from Houston to Seattle most commonly connect through:

    • Denver Intl (DEN) - 78% of one-stop connections
    • Dallas/Fort Worth (DFW) - 8% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 3% of one-stop connections
    • Ontario (ONT) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Houston to Seattle?

    Yes. Flexible dates can save you up to 17% on flights from Houston to Seattle. Wednesday is the cheapest departure day at $427 round-trip on average, while Monday is the most expensive at $513, a difference of $86.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Houston to Seattle?

    2 airlines operate flights between Houston and Seattle. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Alaska Airlines

  • How much time can I save by choosing a different layover airport from Houston to Seattle?

    Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 6h 08m, compared with 6h 46m via Salt Lake City (SLC) and 6h 53m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Houston and Seattle?

    Seattle is 2 hours behind Houston (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Houston to Seattle flights?

    Among airlines operating Houston to Seattle flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Houston to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Houston to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $427, about $86 less than Monday fares (17% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Houston to Seattle trip for February. Fares historically average $321 round-trip in that month - typically $200 less than the most expensive month, which is November (based on the last 12 months).
  • For the best chance of arriving on time, fly with Alaska Airlines. Over the past three months, 90% of Alaska Airlines flights from Houston to Seattle arrived on time, slightly above the route average of 88%. When flights on this route arrive late, they're delayed by an average of 2h 23m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Los Angeles Airport (LAX) can be cheaper than flying direct. The cheapest layover option averages $271 round-trip on this route - about $213 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Houston to Seattle?

 
Find which airlines fly direct from Houston to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Houston to Seattle/Tacoma Intl

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Direct returns

Seattle/Tacoma Intl to Houston

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

More options for your flight from Houston to Seattle

Complete your trip to Seattle with a hotel stay or car rental